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2 article(s) from Xie, Jun

Host–guest interaction of cucurbit[8]uril with oroxin A and its effect on the properties of oroxin A

Zhishu Zeng,
Jun Xie,
Guangyan Luo,
Zhu Tao and
Qianjun Zhang

Beilstein J. Org. Chem. 2020, 16, 2332–2337, doi:10.3762/bjoc.16.194

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Figure 1: The molecular structure of OA (A) and Q[8] (B).

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Figure 2: ¹H NMR titration of OA with Q[8] were performed in D₂O containing 10% DMSO by volume, OA (500 μmol·L...

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Figure 3: (A) The UV–vis absorption spectra recorded for OA in the presence of Q[8] (c(Q[8]), labeled a–k: 0,...

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Figure 4: IR spectra recorded for (a) Q[8], (b) OA, (c) a physical mixture of Q[8] and OA, and (d) the OA@Q[8...

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Figure 5: The possible interaction mode for OA@Q[8].

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Figure 6: The phase-solubility graph obtained for OA in a Q[8] aqueous solution at λ = 275 nm.

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Figure 7: The clearance rate curve of ABTS^+• upon increasing the concentration of OA and the OA@Q[8] inclusio...

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Figure 8: The release curves of OA and OA@Q[8].

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Published 22 Sep 2020

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The interaction between cucurbit[8]uril and baicalein and the effect on baicalein properties

Xiaodong Zhang,
Jun Xie,
Zhiling Xu,
Zhu Tao and
Qianjun Zhang

Beilstein J. Org. Chem. 2020, 16, 71–77, doi:10.3762/bjoc.16.9

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Figure 1: Chemical structures of baicalein (left), cucurbit[8]uril (right).

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Figure 2: The possible interaction model for Q[8] and baicalein.

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Figure 3: ¹H NMR spectra (400 MHz) of Q[8] (a), baicalein (b) and BALE–Q[8] (1:1) (c) recorded in DCl.

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Figure 4: The absorption spectra of BALE upon the addition of Q[8] under different conditions [10 mol·L⁻¹ HCl...

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Figure 5: IR spectra of Q[8] (a), BALE (b), a physical mixture of Q[8]-BALE (N_Q[8]/N_BALE = 1:1) (c) and the B...

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Figure 6: DTA spectra of BALE (a), Q[8] (b), a physical mixture Q[8]-BALE (N_Q[8]/N_BALE = 1:1) (c) and the BAL...

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Figure 7: The stability curve of UV–vis absorption obtained for an isoconcentration of BALE and the BALE–Q[8]...

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Figure 8: The phase solubility graph obtained for BALE in Q[8] at λ = 270 nm.

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Figure 9: The clearance rate curve (A) and clearance time curve (B) of ABTS^+· upon increasing the concentrati...

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Figure 10: The release curves of BALE and BALE–Q[8].

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Published 10 Jan 2020

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